Can't get Surround to work on Nvidia

[Th1sRandomGuy]

I just got my dual monitors( http://www.futureshop.ca/en-CA/product/samsung-samsung-syncmaster-20-widescreen-led-monitor-with-5ms-response-time-s20b300b-s20b300b/10193158.aspx?path=41661e6bebf84387d8a9f034817fa5d5en02 ) and got everything connected but can't check the "Span displays with Surround" box. Here is a picture http://imgur.com/I0pXE
So, I must be doing something wrong. I have a single GTX 680 and my monitors are connected by DVI one is connected by VGA to DVI adapter. Does anyone know what is wrong?

 

[redeemer]

Yeah well to be honest Nvidia Surround sucks, now moving on I have bad new Surround need three monitors to work!!

http://nvidia.custhelp.com/app/answers/detail/a_id/2673

 

[chase3567]

I just got my dual monitors( http://www.futureshop.ca/en-CA/product/samsung-samsung-syncmaster-20-widescreen-led-monitor-with-5ms-response-time-s20b300b-s20b300b/10193158.aspx?path=41661e6bebf84387d8a9f034817fa5d5en02 ) and got everything connected but can't check the "Span displays with Surround" box. Here is a picture http://imgur.com/I0pXE
So, I must be doing something wrong. I have a single GTX 680 and my monitors are connected by DVI one is connected by VGA to DVI adapter. Does anyone know what is wrong?

You can only run surround with 3 monitors connected. You can do extended desktop through Windows with dual monitors.